A person who operates an air traffic control system, to expedite the safe flow of aircraft.

The erratic movement of air masses in the absence of any visual cues, especially such movement that causes unexpected turbulence to an aircraft.

(idiomatic) (Extreme sports) Superlative of catch air; make a big jump high off the ground

(idiomatic) Something relieving, refreshing, or new.

A structure, often a reinforced underground shelter designed to give protection against air raids.

(obsolete, chemistry) silicon tetrafluoride

(chemistry, obsolete) Sulfur dioxide.

(construction) A sealed airspace in a cavity wall.

plural of Air Vice Marshal

(military) The shore-based officer (aviator) responsible to the landing force commander for control and coordination of air operations within the landing force commander's area of operations when control of these operations is passed ashore.